Successful OneUp bid:

Flight: NZ103, 1 pax, B767
From-to: AKL-SYD
Date: 23/02/14
Booked Class: Seat (S)
Bid: NZ$210
Indication: Very Poor ($200 was minimum)
Airpoints: Jade
Result: Accepted 5 days out for Business Class (R) (Tuesday afternoon for Sunday flight)

I also got the email about 9 days before departure, advising me to bid a bit higher, think I actually reduced my bid from memory. The email did seem automated and very generic.

EF showed C4 D4 Z3 J1 before and after upgrade was approved, with 10 seats pre-selected on NZ's website.